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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 9 |
| 1967 | 18 |
| 1968 | 32 |
| 1969 | 48 |
| 1970 | 41 |
| 1971 | 44 |
| 1972 | 57 |
| 1973 | 59 |
| 1974 | 56 |
| 1975 | 46 |
| 1976 | 36 |
| 1977 | 48 |
| 1978 | 50 |
| 1979 | 54 |
| 1980 | 51 |
| 1981 | 45 |
| 1982 | 73 |
| 1983 | 76 |
| 1984 | 98 |
| 1985 | 97 |
| 1986 | 72 |
| 1987 | 104 |
| 1988 | 132 |
| 1989 | 122 |
| 1990 | 180 |
| 1991 | 193 |
| 1992 | 174 |
| 1993 | 159 |
| 1994 | 176 |
| 1995 | 180 |
| 1996 | 176 |
| 1997 | 161 |
| 1998 | 154 |
| 1999 | 186 |
| 2000 | 142 |
| 2001 | 179 |
| 2002 | 207 |
| 2003 | 232 |
| 2004 | 227 |
| 2005 | 224 |
| 2006 | 245 |
| 2007 | 402 |
| 2008 | 422 |
| 2009 | 487 |
| 2010 | 502 |
| 2011 | 542 |
| 2012 | 654 |
| 2013 | 704 |
| 2014 | 734 |
| 2015 | 756 |
| 2016 | 622 |
| 2017 | 615 |
| 2018 | 713 |
| 2019 | 736 |
| 2020 | 754 |
| 2021 | 527 |
| 2022 | 79 |
| 2023 | 17 |
| 2024 | 86 |